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Aconitum napellus Rubellum

Aconitum napellus Rubellum
Monkshood, Wolfsbane, Aconite

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Perfectly arrived, looking forward to next year!

Annie , 11/06/2022

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More information

A charming white-pink flowering form of the aconite napel. This stunning perennial with its wild beauty produces numerous delicate, airy flower spikes adorned with helmet-shaped flowers in shell-like tones. This flowering dominates over large, round and glossy leaves, which are highly divided, on relatively woody stems. This preferred inhabitant of moist and fertile soils is a reliable and floriferous plant for partial shade, perfect for filling the back of perennial borders. All parts of the plant are highly toxic.
Flower size
35 cm
Height at maturity
1 m
Spread at maturity
50 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil, Damp soil
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Best planting time March, October
Recommended planting time March to May
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Flowering time July to August
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Description

The Aconitum napellus 'Rubellum' is a pretty white-pink flowering form of Aconitum napel, quite rare in cultivation. This montane perennial, also known as Jupiter's Helmet due to the shape of its flowers, is in no way inferior to its counterparts. With the charm of wild plants, the 'Rubellum' aconite produces slender flowering stems in summer adorned with pink-tinged flowers that sway above a beautiful vegetation composed of large, finely cut leaves in a glossy dark green colour. This privileged guest of cool and semi-shaded areas in the garden is a reliable and floriferous plant, perfect for filling the back of perennial borders.

Widespread in hilly or mountainous regions throughout Europe as well as in temperate regions of Asia, Aconitum napel is an herbaceous perennial of the buttercup family, like its cousin Delphinium. The selection 'Rubellum', which may be slightly shorter than the wild form, stands out for its delicate white flowers with pink tinges. This plant grows from a fleshy tuberous rootstock from which an erect clump emerges in spring, consisting of sparsely hairy stems bearing tough, almost spherical, deeply palmate leaves with a fringed appearance. These leaves have deep veins and are a very dark green color, with a glossy surface. In July-August, flower spikes adorned with helmet-shaped flowers wider than they are tall unfurl at the tips of the flowering stems, their substance beautifully reflecting light. The flowering plant measures at least 1m (3ft) in height and 30 to 50 cm (12 to 20in) in width. The species napellus is the most toxic of all, and one of the most deadly plants in our flora if the roots are ingested.

Aconites have a bad reputation due to their legendary toxicity, which is a great shame because they deserve a place in every garden, in moist soil. They are robust, very hardy, and their foliage is among the most beautiful among perennial plants. They are perfect for the back of borders, alongside delphiniums, foxgloves, and baneberries, creating enchanting shady summer scenes. They can be planted among bushes, sheltered from the wind that sometimes bends their stems, alongside Japanese anemones that will take over after their flowering. They also look stunning in front of the purple foliage of Physocarpus or Rodgersias. They are good perennials, like foxgloves, for light and cool woodland areas. Finally, their flowers are magnificent in bouquets.

Aconitum napellus Rubellum in pictures

Aconitum napellus Rubellum (Flowering) Flowering
Aconitum napellus Rubellum (Foliage) Foliage

Flowering

Flower colour white
Flowering time July to August
Inflorescence Cluster
Flower size 35 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 1 m
Spread at maturity 50 cm
Growth rate normal

Safety measures

Potential risks Plant may be toxic if swallowed

Botanical data

Genus

Aconitum

Species

napellus

Cultivar

Rubellum

Family

Ranunculaceae

Other common names

Monkshood, Wolfsbane, Aconite

Origin

Central Europe

Product reference875241

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Planting and care

The aconites thrive in light understory, in a sheltered position away from strong winds. The Aconitum napellus will appreciate a deep, moist, limestone to neutral soil. It prefers shaded locations, but tolerates sunlight, although the soil must remain consistently moist and never dry out. For this reason, it is recommended to use mulch in summer to maintain a certain level of freshness. The soil that welcomes it will be enriched with compost and turf, giving it a slight acidity. Stake the tallest flower stalks to prevent them from bending. Caution, Aconitum napellus is toxic.
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Planting period

Best planting time March, October
Recommended planting time March to May

Intended location

Suitable for Woodland edge
Type of use Border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Clayey (heavy), Silty-loamy (rich and light)
Soil moisture Moist soil, Damp soil, Deep, loamy

Care

Pruning instructions Prune the dried vegetation at the end of winter.
Pruning Pruning recommended once a year
Pruning time March
Disease resistance Very good
Overwinter Can be left in the ground
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